<?php

namespace App\Http\Controllers\Api;

use Illuminate\Http\Request;
use App\Http\Controllers\Controller;

class SendEmail extends Controller
{
	  
	/* Public Variables */
	 
	var $smtp_port;
	 
	var $time_out;
	 
	var $host_name;
	 
	var $log_file;
	 
	var $relay_host;
	 
	var $debug;
	 
	var $auth;
	 
	var $user;
	 
	var $pass;
	 
	/* Private Variables */
	var $sock;
	 
	/* Constractor */
	 
	function smtp($relay_host = "", $smtp_port = 25, $auth = false, $user, $pass) {
	$this->debug = false;
	 
	$this->smtp_port = $smtp_port;
	 
	$this->relay_host = $relay_host;
	 
	$this->time_out = 30; //is used in fsockopen()
	 
	$this->auth = $auth; //auth
	 
	$this->user = $user;
	 
	$this->pass = $pass;
	 
	$this->host_name = "localhost"; //is used in HELO command
	$this->log_file = "";
	 
	$this->sock = false;
	}
	 
	/* Main Function */
	 
	function sendmail($to, $from, $subject = "", $body = "", $mailtype, $cc = "", $bcc = "", $additional_headers = "") {
	$mail_from = $this->get_address($this->strip_comment($from));
	 
	$body = ereg_replace("(^|(rn))(.)", "1.3", $body);
	 
	$header .= "MIME-Version:1.0rn";
	 
	if ($mailtype == "HTML") {
	$header .= "Content-Type:text/htmlrn";
	}
	 
	$header .= "To: " . $to . "rn";
	 
	if ($cc != "") {
	$header .= "Cc: " . $cc . "rn";
	}
	 
	$header .= "From(www.jb51.net): $from<" . $from . ">rn";
	 
	$header .= "Subject: " . $subject . "rn";
	 
	$header .= $additional_headers;
	 
	$header .= "Date: " . date("r") . "rn";
	 
	$header .= "X-Mailer:By Redhat (PHP/" . phpversion() . ")rn";
	 
	list ($msec, $sec) = explode(" ", microtime());
	 
	$header .= "Message-ID: <" . date("YmdHis", $sec) . "." . ($msec * 1000000) . "." . $mail_from . ">rn";
	 
	$TO = explode(",", $this->strip_comment($to));
	 
	if ($cc != "") {
	$TO = array_merge($TO, explode(",", $this->strip_comment($cc)));
	}
	 
	if ($bcc != "") {
	$TO = array_merge($TO, explode(",", $this->strip_comment($bcc)));
	}
	 
	$sent = true;
	 
	foreach ($TO as $rcpt_to) {
	$rcpt_to = $this->get_address($rcpt_to);
	 
	if (!$this->smtp_sockopen($rcpt_to)) {
	$this->log_write("Error: Cannot send email to " . $rcpt_to . "n");
	 
	$sent = false;
	 
	continue;
	}
	 
	if ($this->smtp_send($this->host_name, $mail_from, $rcpt_to, $header, $body)) {
	$this->log_write("E-mail has been sent to <" . $rcpt_to . ">n");
	} else {
	$this->log_write("Error: Cannot send email to <" . $rcpt_to . ">n");
	 
	$sent = false;
	}
	 
	fclose($this->sock);
	 
	$this->log_write("Disconnected from remote hostn");
	}
	 
	return $sent;
	}
	 
	/* Private Functions */
	 
	function smtp_send($helo, $from, $to, $header, $body = "") {
	if (!$this->smtp_putcmd("HELO", $helo)) {
	return $this->smtp_error("sending HELO command");
	}
	// auth
	if ($this->auth) {
	if (!$this->smtp_putcmd("AUTH LOGIN", base64_encode($this->user))) {
	return $this->smtp_error("sending HELO command");
	}
	 
	if (!$this->smtp_putcmd("", base64_encode($this->pass))) {
	return $this->smtp_error("sending HELO command");
	}
	}
	 
	if (!$this->smtp_putcmd("MAIL", "FROM:<" . $from . ">")) {
	return $this->smtp_error("sending MAIL FROM command");
	}
	 
	if (!$this->smtp_putcmd("RCPT", "TO:<" . $to . ">")) {
	return $this->smtp_error("sending RCPT TO command");
	}
	 
	if (!$this->smtp_putcmd("DATA")) {
	return $this->smtp_error("sending DATA command");
	}
	 
	if (!$this->smtp_message($header, $body)) {
	return $this->smtp_error("sending message");
	}
	 
	if (!$this->smtp_eom()) {
	return $this->smtp_error("sending <CR><LF>.<CR><LF> [EOM]");
	}
	 
	if (!$this->smtp_putcmd("QUIT")) {
	return $this->smtp_error("sending QUIT command");
	}
	 
	return true;
	}
	 
	function smtp_sockopen($address) {
	if ($this->relay_host == "") {
	return $this->smtp_sockopen_mx($address);
	} else {
	return $this->smtp_sockopen_relay();
	}
	}
	 
	function smtp_sockopen_relay() {
	$this->log_write("Trying to " . $this->relay_host . ":" . $this->smtp_port . "n");
	 
	$this->sock = @ fsockopen($this->relay_host, $this->smtp_port, $errno, $errstr, $this->time_out);
	 
	if (!($this->sock && $this->smtp_ok())) {
	$this->log_write("Error: Cannot connenct to relay host " . $this->relay_host . "n");
	 
	$this->log_write("Error: " . $errstr . " (" . $errno . ")n");
	 
	return false;
	}
	 
	$this->log_write("Connected to relay host " . $this->relay_host . "n");
	 
	return true;
	;
	}
	 
	function smtp_sockopen_mx($address) {
	$domain = ereg_replace("^.+@([^@]+)$", "1", $address);
	 
	if (!@ getmxrr($domain, $MXHOSTS)) {
	$this->log_write("Error: Cannot resolve MX "" . $domain . ""n");
	 
	return false;
	}
	 
	foreach ($MXHOSTS as $host) {
	$this->log_write("Trying to " . $host . ":" . $this->smtp_port . "n");
	 
	$this->sock = @ fsockopen($host, $this->smtp_port, $errno, $errstr, $this->time_out);
	 
	if (!($this->sock && $this->smtp_ok())) {
	$this->log_write("Warning: Cannot connect to mx host " . $host . "n");
	 
	$this->log_write("Error: " . $errstr . " (" . $errno . ")n");
	 
	continue;
	}
	 
	$this->log_write("Connected to mx host " . $host . "n");
	 
	return true;
	}
	 
	$this->log_write("Error: Cannot connect to any mx hosts (" . implode(", ", $MXHOSTS) . ")n");
	 
	return false;
	}
	 
	function smtp_message($header, $body) {
	fputs($this->sock, $header . "rn" . $body);
	 
	$this->smtp_debug("> " . str_replace("rn", "n" . "> ", $header . "n> " . $body . "n> "));
	 
	return true;
	}
	 
	function smtp_eom() {
	fputs($this->sock, "rn.rn");
	 
	$this->smtp_debug(". [EOM]n");
	 
	return $this->smtp_ok();
	}
	 
	function smtp_ok() {
	$response = str_replace("rn", "", fgets($this->sock, 512));
	 
	$this->smtp_debug($response . "n");
	 
	if (!ereg("^[23]", $response)) {
	fputs($this->sock, "QUITrn");
	 
	fgets($this->sock, 512);
	 
	$this->log_write("Error: Remote host returned "" . $response . ""n");
	 
	return false;
	}
	 
	return true;
	}
	 
	function smtp_putcmd($cmd, $arg = "") {
	if ($arg != "") {
	if ($cmd == "")
	$cmd = $arg;
	 
	else
	$cmd = $cmd . " " . $arg;
	}
	 
	fputs($this->sock, $cmd . "rn");
	 
	$this->smtp_debug("> " . $cmd . "n");
	 
	return $this->smtp_ok();
	}
	 
	function smtp_error($string) {
	$this->log_write("Error: Error occurred while " . $string . ".n");
	 
	return false;
	}
	 
	function log_write($message) {
	$this->smtp_debug($message);
	 
	if ($this->log_file == "") {
	return true;
	}
	 
	$message = date("M d H:i:s ") . get_current_user() . "[" . getmypid() . "]: " . $message;
	 
	if (!@ file_exists($this->log_file) || !($fp = @ fopen($this->log_file, "a"))) {
	$this->smtp_debug("Warning: Cannot open log file "" . $this->log_file . ""n");
	 
	return false;
	;
	}
	 
	flock($fp, LOCK_EX);
	 
	fputs($fp, $message);
	 
	fclose($fp);
	 
	return true;
	}
	 
	function strip_comment($address) {
	$comment = "([^()]*)";
	 
	while (ereg($comment, $address)) {
	$address = ereg_replace($comment, "", $address);
	}
	 
	return $address;
	}
	 
	function get_address($address) {
	$address = ereg_replace("([ trn])+", "", $address);
	 
	$address = ereg_replace("^.*<(.+)>.*$", "1", $address);
	 
	return $address;
	}
	 
	function smtp_debug($message) {
	if ($this->debug) {
	echo $message . "
	;";
	}
	}
}


